Tables

Row

Total number of participants

172

Total number of variables

20

Total number of missings

298

Row

Descriptive statistics

Table 1. Descriptive Statistics
n mean sd min max
Trait self-control 162 2.83 0.52 1.85 4.31
Concentration (CIS) 162 3.93 1.12 1.60 6.80
Disturbances in sleep quality (PSQI) 149 5.91 2.43 1.00 15.00
Chronotype (MCTQ) 140 5.11 1.08 2.44 8.08
Alcohol usage (AUDIT) 149 8.89 5.23 0.00 25.00

Dataframe

Visualizations

Column

Histogram Trait self-control score of the participants

Column

Heatmap correlation between the scores of the participants

Description

The left shows a histogram of the trait self-control (TSC) test score. The mean and 95% confidence intervals are visualized with the vertical lines. The sampled data appears to be normally distributed with a mean TSC score of 2.85, with a standard deviation of 0.56.

The top right figure shows the correlation between the different variables in the database. From the heatmap, can be seen that there is a strong negative correlation between the disturbances in sleep quality (PSQI) and concentration (CIS) score. And a negative relation between the alcohol usage (AUDIT) of the participants and the trait self-control score. A positive correlation can be found between the chronotype (MCTQ) and both the disturbances in sleep quality and alcohol usage (AUDIT).